Window-screen.



PATBNTED JULY 14, 1903.

RE RE w ES W ,-0 D m T W APPLICATION FILED DBO. 11, 1902.

2 BHEETB-SHEET 1 N0 MODEL.

PA TENTBD JULY 14, 1903..

L. 1. R. DB VRIES.

WINDOW SCREEN.

APPLIOATIOIF FILED D110. 11, 1902.

2 sums-4113mm N 0. MO DBL.

IIH

[NVENTUR L. J de $17 .9.

WITNESSES:

UNITED STATES Patented J'uly 14, 1903.

PATENT O FICE.

1 WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 733,774, dated July 14, 1903.

Application filed December 11,1902. Serial No. 134,811. (No model.)

To all whom it may concern:

Be it known that I, LUrTJEN J R. DE VRIES, a citizen of the United States, residing at Panola, in the county of Woodford and State of Illinois, have invented certain new and useful Improvements in Window-Screens; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which.

it appertains to make and use the same.

Myinvention is an improved window-screen especially adapted for use in connection with window-blinds; and it consists in the peculiar'construction and combination of devices which will be hereinafter fully described and claimed.

The object of my invention is-to provide an improved screen and means for securing it to a window-blind or other frame and which when attached to a window-blind permits the windows to be readily opened and closed and to be disposed as may be desired for purposes of ventilation.

In the accompanying drawings, Figurel is an elevation of the outer side of a windowblind provided with my improved screen."

. its corners to the shutter is indicated in dotspring-bars 3. The side bars 2 are preferablymadeof wood, and the same are curved longitudinally from end to end, so that they are normally somewhat arc-shaped,and the crossbars 3 are made of tin or other suitable sheet metal and are flat and also arc-shaped longitudinally and-have their ends bent around the ends of the side bars 2 and secured thereto by nails or other suitable devices at. Each of the cross-bars 3 has one of its side edges doubled, as at 5 in Fig. 2, and the screen fabric 6,

which has its side edges stretched around the cross-bars 2, has its end portions bent around the cross-bars 3 and its edges secured to the flanges 7, formed by the doubled or turned edges of the cross-bars 3. The connection between the screen fabric and the side bars 2 is strengthened at the corners of the screenframe by reason of the fact that'the end por-' The ends of the cross-bars 3 and side bars 2,

being the corners of the screen-frame 1, spring normally outwardly from the blind or shutter. The central portions of the side bars 2 of the screen-frame are secured to the blind or shutter by nails or other suitable devices 8, the same extending through the side bars, their heads bearing on the outer side of the screen fabric and said nails being driven into the blind or shutter, so that the edges of the screen fabric, which are stretched around the side bars 2 and secured to the inner sides thereof by tacks or other suitable devices 9,are also clamped between the screen-frame and the shutter or blind.

In connection with my improved screen I provide a number of catches 10. Each of the said catches is formed of a single piece of suitable sheet metal and comprises a base 1.1, a lug 12, projecting outwardly from one end thereof, and an engaging lip 13, forming a cam, which projects substantially at right angles from the outer side of the lug at its inner edge portion. The base 11 has its inner edge straight, as at 14.,from the lug 12 to a point intermediate its ends, and from the said straight edge 14. is beveled outwardly at a suitable angle, as at 15. A fender-lug 16 is formed with the catch, is disposed at the inner edge of the base thereof, and pro-.

jects upwardly therefrom. This fender-lug is preferably triangular in shape, as here shown; but it may be of any other suitable form. The width of the upper portion of the lug 12 exceeds that of the base 11, and the same is notched at 17 to form a shoulder or overhang 18, adapted to engage one of the side bars of the screen-frame, and the lip 13 is bent outwardly from the said overhanging portion and is disposed with its under side in a plane which converges downwardly and outwardly to that planein which the base 11 of the catch lies. Hence the lip 13 forms an engaging cam.

The catches 10 are pivoted on the shutter or blind, preferably by means of screws 19, which operate in openings 20, with which the catches are provided, and the latter are adapted to be turned on the said pivot-screws to cause their cam-lips 13 to engage the side bars of the screen-frame near the ends thereof and draw them inwardly into contact with the shutter or blind, and thereby secure the corners of the screen frame firmly against the face of the shutter or blind. The fenderlugs 16 are of great utility when applying the catches to the shutter or blind by bearingagainst the outer sides of the screen-frame, so as to properly locate the catches with reference to the screen-frame before inserting the pivot-screws 20. The beveled edges 15 of the catches enable the same to be turned so that their cam-lips 13 may be disengaged from the screen-frame when the same is desired. Hence by partly turning the springcatches on their pivots to disengage the spring-catches from the screen-frame and by drawing the nails 8 from the shutter or blind, which may be readily done by inserting an edged tool between the contacting portions of the shutter or blind and the screen-frame, the latter may be readily detached from the blind, as will be understood. The screen being disposed on the outer side of the blind, when the latter is opened and caused to lie against the outer side of the wall of the house the screen-frame will be covered thereby and protected from the elements. When the shutter or blind carrying the screen-frame is closed, the screen effectually prevents mosqnitos, fiies, and other insects from entering a window thus provided. It will be understood that one of my improved screens will be used in connection with each of the shutters or blinds of awindow. It will be also understood that when the shutters or blinds have the pivot cross-slats the latter may be properly adjusted to admit light to the shutter and also to admit air thereto when the windowsashes are partly or entirely opened.

From the foregoing description, taken in connection with the accompanying drawings, the construction, mode of operation, and advantages of this invention will be readily apparent, it is thought, without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In combination with a shutter or the like, a screen thereon having a frame comprising resilient bars, are shaped and curved outwardly from end to end, means securing the central portions of the side bars on the screenframe to the shutter and clamping devices secured on the shutter, overlapping and engaging the outspringing corner portions of the screen-frame and securing the same on the shutter, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

LUITJ EN J. R. DE VRIES.

W itnesses:

O. F. ZINKAN, L. K. EVANS. 

